From 9116995efb9c1038bc6eaeb242d55b90aef0e72b Mon Sep 17 00:00:00 2001
From: Peter Ross <pross@xvid.org>
Date: Sun, 16 Dec 2012 12:48:39 +1100
Subject: [PATCH] libavutil: add AV_PIX_FMT_BAYER pixel formats

The pixel format descriptors are set to more or less arbitrary
values as bayer formats do not fit in the descriptors structure.
These values are currently not used for bayer formats and thus
do not matter.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavutil/pixdesc.c | 71 +++++++++++++++++++++++++++++++++++++++++++++
 libavutil/pixfmt.h  | 14 +++++++++
 2 files changed, 85 insertions(+)

diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
index e866db2118..4c46921e62 100644
--- a/libavutil/pixdesc.c
+++ b/libavutil/pixdesc.c
@@ -1737,6 +1737,75 @@ const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
        },
         .flags = AV_PIX_FMT_FLAG_BE,
     },
+
+#define BAYER8_DESC_COMMON \
+        .nb_components= 3, \
+        .log2_chroma_w= 0, \
+        .log2_chroma_h= 0, \
+        .comp = {          \
+            {0,0,0,0,1},   \
+            {0,0,0,0,3},   \
+            {0,0,0,0,1},   \
+        },                 \
+
+#define BAYER16_DESC_COMMON \
+        .nb_components= 3, \
+        .log2_chroma_w= 0, \
+        .log2_chroma_h= 0, \
+        .comp = {          \
+            {0,1,0,0, 3},  \
+            {0,1,0,0, 7},  \
+            {0,1,0,0, 3},  \
+        },                 \
+
+    [AV_PIX_FMT_BAYER_BGGR8] = {
+        .name = "bayer_bggr8",
+        BAYER8_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_BGGR16LE] = {
+        .name = "bayer_bggr16le",
+        BAYER16_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_BGGR16BE] = {
+        .name = "bayer_bggr16be",
+        BAYER16_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_RGGB8] = {
+        .name = "bayer_rggb8",
+        BAYER8_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_RGGB16LE] = {
+        .name = "bayer_rggb16le",
+        BAYER16_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_RGGB16BE] = {
+        .name = "bayer_rggb16be",
+        BAYER16_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_GBRG8] = {
+        .name = "bayer_gbrg8",
+        BAYER8_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_GBRG16LE] = {
+        .name = "bayer_gbrg16le",
+        BAYER16_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_GBRG16BE] = {
+        .name = "bayer_gbrg16be",
+        BAYER16_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_GRBG8] = {
+        .name = "bayer_grbg8",
+        BAYER8_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_GRBG16LE] = {
+        .name = "bayer_grbg16le",
+        BAYER16_DESC_COMMON
+    },
+    [AV_PIX_FMT_BAYER_GRBG16BE] = {
+        .name = "bayer_grbg16be",
+        BAYER16_DESC_COMMON
+    },
 };
 
 FF_DISABLE_DEPRECATION_WARNINGS
@@ -1918,6 +1987,8 @@ void ff_check_pixfmt_descriptors(void){
                 av_assert0(8*(c->step_minus1+1) >= c->depth_minus1+1);
             }
             av_read_image_line(tmp, (void*)data, linesize, d, 0, 0, j, 2, 0);
+            if (!memcmp(d->name, "bayer_", 6))
+                continue;
             av_assert0(tmp[0] == 0 && tmp[1] == 0);
             tmp[0] = tmp[1] = (1<<(c->depth_minus1 + 1)) - 1;
             av_write_image_line(tmp, data, linesize, d, 0, 0, j, 2);
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index 57da2a3ed9..17e595ca9d 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -244,6 +244,20 @@ enum AVPixelFormat {
     AV_PIX_FMT_GBRAP16BE,   ///< planar GBRA 4:4:4:4 64bpp, big-endian
     AV_PIX_FMT_GBRAP16LE,   ///< planar GBRA 4:4:4:4 64bpp, little-endian
     AV_PIX_FMT_YUVJ411P,    ///< planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor of PIX_FMT_YUV411P and setting color_range
+
+    AV_PIX_FMT_BAYER_BGGR8,    ///< bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples */
+    AV_PIX_FMT_BAYER_RGGB8,    ///< bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples */
+    AV_PIX_FMT_BAYER_GBRG8,    ///< bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples */
+    AV_PIX_FMT_BAYER_GRBG8,    ///< bayer, GRGR..(odd line), BGBG..(even line), 8-bit samples */
+    AV_PIX_FMT_BAYER_BGGR16LE, ///< bayer, BGBG..(odd line), GRGR..(even line), 16-bit samples, little-endian */
+    AV_PIX_FMT_BAYER_BGGR16BE, ///< bayer, BGBG..(odd line), GRGR..(even line), 16-bit samples, big-endian */
+    AV_PIX_FMT_BAYER_RGGB16LE, ///< bayer, RGRG..(odd line), GBGB..(even line), 16-bit samples, little-endian */
+    AV_PIX_FMT_BAYER_RGGB16BE, ///< bayer, RGRG..(odd line), GBGB..(even line), 16-bit samples, big-endian */
+    AV_PIX_FMT_BAYER_GBRG16LE, ///< bayer, GBGB..(odd line), RGRG..(even line), 16-bit samples, little-endian */
+    AV_PIX_FMT_BAYER_GBRG16BE, ///< bayer, GBGB..(odd line), RGRG..(even line), 16-bit samples, big-endian */
+    AV_PIX_FMT_BAYER_GRBG16LE, ///< bayer, GRGR..(odd line), BGBG..(even line), 16-bit samples, little-endian */
+    AV_PIX_FMT_BAYER_GRBG16BE, ///< bayer, GRGR..(odd line), BGBG..(even line), 16-bit samples, big-endian */
+
     AV_PIX_FMT_NB,        ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
 
 #if FF_API_PIX_FMT